小编Cor*_*ava的帖子

我正在尝试打印出ArrayList"列表"的内容,但我不断得到我认为的元素位置而不是内容.

import java.util.*;
public class Assignment23 {

public static void main (String[] args){

ArrayList<Point> list = new ArrayList<Point>();
for(int i = 0; i < 99; i++){
    list.add(new Point());
}
Collections.sort(list);
System.out.println(""+list);
}
}
class Point implements Comparable<Point>{
int x = (int)(Math.random()*-10);
int y = (int)(Math.random()*-10);

我应该显示一行2个按钮,但似乎并非如此.

import java.util.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

public class Studying extends JFrame{

JButton button = new JButton("Word");
JButton button1 = new JButton("MoreWords");

public void Studying(){

JPanel p1 = new JPanel();
p1.setLayout(new GridLayout(1,2));
p1.add(button);
p1.add(button1);
add(p1);

}

 public static void main(String[] args){
Studying frame = new Studying();
frame.setTitle("test");
frame.setSize(500,200);
frame.setVisible(true);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

我正在尝试创建一个for循环来打印1-100之间的每个数字的平方.

<?php

for ($count = 1; $count < 100; $count++){
  $squared = $count * $count;
  print("$count squared is $squared");
}

?>

我得到的是这个.

"1平方是12平方是43平方是94平方是165平方是256"等...我不知道我做错了什么.

编辑:你们都是救生员,我是愚蠢的,万岁Stack Overflow.